Well, that might be enough for an indication - but you can't find out whether you also have excess water or, for example, an increased proportion of soot in the oil.
It's nice to read that at least a few people are thinking a little more about it and aren't just saying "I don't care about anything." Out of interest, I asked: Has anyone in your group ever had an oil analysis done? Even if that would actually be Renault's job... you can also have it done as a private person for relatively little money. If no one has done this before/never heard of it, I would recommend checking out here:
Nicht von meinem Auto, aber sie sollten alle gleich aussehen. Eine andere Person aus Großbritannien hat ebenfalls ein ähnliches Ergebnis veröffentlicht.